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Interest & Loan Payment Calculator
x402
Interest & Loan Payment Calculator is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).
Computes simple interest, compound interest, annuity loan payments, and related financial metrics (APR/APY, future/present value) with configurable compounding frequency
Price / call$0.008
Success—
StatusUnknown
How this service works
Interest calculator, compound interest, simple interest, loan payment, mortgage calculator, annuity, APR APY, future value, present value, investment return. Compute simple/compound interest or annuity loan payments with configurable compounding frequency. Accepts payment on Base or Solana — either network works.
Output
Returns computed financial values including interest amount, total payment or balance, future or present value, APR, APY, and periodic payment amount depending on the calculation type requested
Example use cases
Example prompt
“Calculate the monthly payment for a $250,000 mortgage at 6.5% annual interest compounded monthly over 30 years using compound annuity mode.”
Technical details
Endpoint
GEThttps://api.x402node.dev/math/interestWhen to prefer
Use this endpoint when you need reliable server-side financial math for compound/simple interest, loan or mortgage payments, annuity calculations, APR/APY conversions, or future/present value projections — especially in agentic pipelines where reproducibility and a standardized API response matter more than building custom formulas
Side effects
- Missing required fields (principal, rate, or period) returns 400 validation error
- Invalid compounding frequency value returns 400
- Negative principal or rate may return 422 or unexpected results
- Request times out if server is overloaded — retry recommended
- Payment failure returns 402 if x402 wallet balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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